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Radiant|Natural|GIA

1.51ct E SI1 Radiant Natural Diamond

EX • E/SI1 • GIA 6243006312

Certificate GIA 6243006312

Diamond specifications and retailer prices

From $10,162 SGD
$7,949 USD
As of October 26, 2026
Save $8,140 SGD (44%) vs most expensive(unlock to see where)
22 retailers carry this diamond
Most expensive: $18,302 SGD at NZ Jewellers · As of October 27, 2026
View at NZ Jewellers

About this 1.51ct natural radiant diamond

This 1.51ct natural radiant sits in the one-and-a-half to two carat band, graded E colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 6243006312. Listed at 22 retailers as of October 26, 2026, with prices from $10,162 to $18,302, a $8,140 spread on the same certified stone. NZ Jewellers lists it at $18,302. SI-grade stones are eye-clean roughly 60 to 70% of the time at this carat range. Check the inclusion plot on the cert and ask the retailer for high-resolution video before buying.

The 4Cs

1.51
Carat
E
Colour
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 6243006312
Dimensions7.69 × 5.69 × 3.85 mm
L/W Ratio1.35
Culet sizeNone
Top View
7.69 mm5.69 mm1.51 ctE / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 6243006312
Side View
Table 69.0%CrownGirdle: THK-VTKPavilionCulet: NoneDepth 67.7%

Caratlytics Score

How it works →
B+
Very Good
Strong quality and value balance
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 26
Current: $18,302 SGD|Low: $10,093 SGD|High: $18,302 SGD|Avg: $12,933 SGD
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
Retailer 14
Retailer 15
Retailer 16
Retailer 17
Retailer 18
Retailer 19
October 28, 2026
Retailer 5$10,093 SGD
Retailer 4$10,162 SGD
Retailer 11$10,911 SGD
Retailer 15$10,981 SGD
Retailer 10$11,072 SGD
Retailer 7$11,380 SGD
Retailer 19$11,896 SGD
Retailer 12$11,931 SGD
Retailer 16$12,059 SGD
Retailer 17$12,080 SGD
Retailer 8$12,129 SGD
Retailer 2$12,353 SGD
Retailer 3$13,459 SGD
Retailer 9$13,529 SGD
Retailer 6$13,726 SGD
Retailer 13$13,760 SGD
Retailer 18$15,847 SGD
Retailer 14$17,172 SGD
NZ Jewellers$18,302 SGD

32 data points across 19 retailers

22 retailers$10,162 SGD to $18,302 SGD

Retailer 1
-
$10,093 SGD
$7,895 USD
Price last confirmed 9 days ago
B+
Retailer 2
-
$10,162 SGD
$7,949 USD
View
B+
Retailer 3
-
$10,281 SGD
$8,042 USD
View
B+
Retailer 4
-
$10,911 SGD
$8,535 USD
View
B+
Retailer 5
-
$10,981 SGD
$8,590 USD
View
B+
Retailer 6
-
$11,072 SGD
$8,661 USD
View
B+
Retailer 7
-
$11,380 SGD
CA$12,363 CAD
View
B+
Retailer 8
-
$11,706 SGD
$9,157 USD
View
B+
Retailer 9
-
$11,896 SGD
$9,305 USD
View
B+
Retailer 10
-
$11,931 SGD
£7,348 GBP
View
B+
Retailer 11
-
$12,059 SGD
A$14,512 AUD
View
B+
Retailer 12
-
$12,080 SGD
$9,449 USD
View
B
Retailer 13
-
$12,129 SGD
$9,488 USD
View
B+
Retailer 14
-
$12,353 SGD
£7,609 GBP
View
B
Retailer 15
-
$13,459 SGD
$10,528 USD
View
B
Retailer 16
-
$13,529 SGD
$10,583 USD
View
B
Retailer 17
-
$13,726 SGD
$10,737 USD
View
B+
Retailer 18
-
$13,760 SGD
€10,251 EUR
View
Retailer 19
-
$14,454 SGD
$11,306 USD
View
Price last confirmed 7 days ago
Retailer 20
-
$15,847 SGD
ZAR 200,255 ZAR
View
Price last confirmed 8 days ago
B
Retailer 21
-
$17,172 SGD
£10,577 GBP
View
Most Expensive
B
NZ Jewellers
021ade1d-30d8-47bd-ad0e-6c1fc438c237 · Oct 27
$18,302 SGD
$14,316 USD
View
21 more retailers have this diamond
Prices start from $10,162 SGDSave up to $8,140 SGD

Carat Hunter is not affiliated with, endorsed by, or sponsored by any retailer listed. Retailer information is from publicly available sources and may not be current. Verify details directly with the retailer before purchasing. Return terms as we hold them. Check the retailer's own returns page before you buy.

B+
1.51ct Radiant
$10,162 SGD